Safety-catch for pins



(No Model.)

G. W. WASHBUBN.

SAFETY UATGE FOR PINS.

No. 252,159. Patented Jan. 10,1882.

WITNESSES .b./ MW M? W UNITED STATES PATENT OFFICE.-

GEORGE WASHBURN, OF WEST NEW BRIGHTON, NEW YORK.

SAFETY-CATCH FOR PINS.

SPEGIFIGA'IZION. forming. part of Letters Patent No. 252,159, dated.January 10, 1882.

Application filed November 22, 1881. (No model.)

To all whom it mag concern Be it known that I, GEORGE W. WAsHBURN, acitizen of the United States',residin g at West New Brighton, in the:State ofNew York, have invented a new and useful Improvement in. I"

Safety-Catches forPins, of which the following is a specification.

This'invention is addition-alto the improvement in safety-eatchesforpins described and claimed: in m specification forming partof LettersPatent No. 247,228, dated September 20, 1881, and relates moreparticularly to the construction of a self-holding guard-tube, and itsiucorporationin a safety-catch of the same general form and" mode ofoperation as thosedescribed-in my aforesaid previous specification. Thegeneral object of my present invention is to form a light and securesafety-catch adapted to be readilymanipulated and applicable alike tobreastpins andother jewels havin g pin-tongues, and tonursery-pins orprotection-pins, and to pins the bars or bodies of which will notaccommodatea supplemental support for the outer tube of my telescopicattachment, and those in which spring-tongues and stop-hinges are notused, as well as others.

To this end I provide my improved safetycatch with a guard-tube adaptedto expand within the outer tube, so as to securely hold-itself in itsdifferent positions without sustaining any pressure from the pin-tongue,the pressure of the latter'being sustained by the scroll-catch, which isreadily made of thereqnisite strength to support the outer tube alsowithout assistance, while the self holding guard-tube slides moresmoothly than an unyielding one, is moreeasily fitted, and is read ilymanufactured in a neat and ornamental form, as hereinafter more fullyset forth.

iFigures 1 and 2 of the accompanying drawin gs are perspective views ofa magnified illustrative pin provided with this safetycatch, showing itrespectively open or unlocked and closed or locked. Figs. 3 and 4 aresimilar perspective views, on a still largersoale, oflhe, safety-catchalone. Fig. 5 represents a longitudinal section through the outer partsof the safety-catch, as shown in Fig. 3, showing the guard-tube inelevation with dotted outlines of adjoining parts; and Fig. 6 alongitudinal section in the same plane through the safetygcatch as shownin Fig. 4, with dotted out- .jlines, as in Fig. 5, showing thepin-pointwitli- 1 in the guard-tube, and Fig. 7 is a perspective ,1 viewof the guard-tube alone.

Likeletters of referenceindicate correspond- :ingparts in all thefigures.

B may represent a longitudinal or transverse bar or the body or backplate, and P the attaching-pin or tongue of a breastpiu. for example; h,an ordinary stop-hinge unitingtbese parts, and 0 an ordinaryscroll-catch.

The other parts of my improved safety-ca tch area fixed cylindricaltube,t, termed the out- ,er tube, which is preferably soldered to one ;sideof said scroll-catch, so as to project outwardly therefrom in line withthe catched pin P, and inner tube or thimble, g, termed the guardtube,sliding longitudinally within saidouter tube, and having an open innerend to receive and inclose the point of the pin, with or without asupplemental support, I), at the outer end of the outer tube, in theform of a connecting-bar. To adapt said guard-tube g to expand withinsaid outer tube, so as to hold itself in different positions, it hasbeen made as follows: Two half-tubes, 1 2, Fig. 7, of proper size, areunited at one end by slipping a ring, 3, over them. They are then sprungapart at the opposite end, and in this condition are soldered to saidring, a shot, 4, to form a retracting-knob, being attached in likemanner and at the same operation to the same end of the guard-tube,which is. its outer end. The half-tube 1., having been cut longer forthe purpose, is so shaped at its free end as to form a projection, 5,adapted to be bent up, as shown in dotted lines, and in this shape towork as a stop in a longitudinal opening, 6, in the back of the outertube,t, and to close neatly into or against the scroll-catch c, as shownin Figs. 3 and 4. After the united scroll-catch and outer tube have beenattached, and these parts of the safety-catch, Figs. 3 and 4, have beenotherwise finished and polished, the otherwise finished guard-tube, inthe form represented by full lines in Fig. 7, is united therewith bypressing the two half-tubes together and inserting the open end into theouter end of said outer tube, and, finally, bending up thestop-projection 5. The half-tubes tend by sufficient elasticity toregain their separated condition, and consequently act, by an efficientoutward pressure within the outer tube, to hold the guard-tubefrictionally in its different positions, as aforesaid, withoutsustaining the pressure of the pin, which is preferably borne solely bythe scroll-catch, as illustrated by dotted lines in Fig. 6. The saidopening 6 in the back of the outer tube is formed in line with theopening of the scroll-catch, and serves to admit the point of the pin Pand to release the same, while it is inconspicuous and is not subjectedto wear by the pin. The retraction of the guard-tube is limited by saidstop-projection 5, and its inward movement is limited by said ring 3 inthe example. The safetycatch-alone, in two parts, 0 t and g, may befurnished by the manufacturers to the trade, to be attached by thelatter.

The scroll-catch 0 may be readily made and attached so as to affordample support to the outer tube without the aid of the bar I). When thiscannot be conveniently used a shot may take the place of the bar I), aneye-ring or the like may be substituted for the shot 4 to provide forretracting the guard-tube by means of a pin-point, and other likemodifications which will suggest themselves to those skilled in the artmay be made at will without departing from the present invention. Aninelastic pin and a hinge without a stop may be used, and theself-holding guard-tube may be produced in other ways than by the methodherein specified, for the purposes of this invention.

The several parts may be made of any suita-' ble metal.

I do not claim, broadly, a safety-catch for pins having or adapted tohave a single connection with the bar or body of the pin or jewel, as Iam aware that safety-catches de- I:l.avin, thus described my saidimprove meat, I claim as new- 1. A safety-catch for pins having aguardtube adapted to slide longitudinally within an outer tube toinclose the point of the pin and to release the same, and adapted -toexpand within said outer tube to hold itself in its different positions,substantially as'herein specitied.

2. The combinatiomin asafety-catch for pins, of a fixed scroll-catchadapted to sustain the pressure of the pin, an outer tube fixedlyattached to said scroll catch, and having an opening in its backcorresponding with the open-1 ing of said scroll-catch to receive thepoint. of the pin, and a guard-tube adapted to slide longitudinallywithin said outer tube to-inclose the point of the pin and to releasethe same, and adapted to expand within said outer tube to hold itself inits different positions, substantially as herein specified.

3. In a safety-catch for pins, a self-holding guard-tube composed of twohalftubes with an embracing-ring and a terminal shot at one end unitedtherewith, said half-tubes being sprung apart at their free ends, asherein described, for the purposes set forth.

GEO. W. WASHBURN.

Witnesses:

O. G. LEWIS, J G. MoUN'r.

